1.. _ek_ra4m2: 2 3RA4M2 Evaluation Kit 4#################### 5 6Overview 7******** 8 9The Renesas RA4M2 group of 32-bit microcontrollers (MCUs) uses the high-performance Arm 10Cortex®-M33 core. In concert with the secure crypto engine, it offers secure element 11functionality. The RA4M2 is built on a highly efficient 40nm process, built on FreeRTOS—and 12is expandable to use other RTOSes and middleware. The RA4M2 is suitable for IoT applications 13requiring vast communication options, future proof security, large embedded RAM, and low 14active power consumption down to 81µA/MHz running the CoreMark® algorithm from Flash. 15 16The MCU in this series incorporates a high-performance Arm Cortex®-M33 core running up to 17100 MHz with the following features: 18 19**Renesas RA4M2 Microcontroller Group** 20- R7FA4M2AD3CFP 21- 100-pin LQFP package 22- 100 MHz Arm® Cortex®-M33 core 23- 512 kB Code Flash, 128 KB SRAM 24- Native pin access through 4 x 28-pin male headers 25- MCU current measurement points for precision current consumption measurement 26- Multiple clock sources - RA MCU oscillator and sub-clock oscillator crystals, providing 27precision 24.000 MHz and 32,768 Hz reference clock. Additional low-precision clocks are 28available internal to the RA MCU 29 30**System Control and Ecosystem Access** 31- USB Full Speed Host and Device (micro AB connector) 32- Three 5 V input sources 33 34 - USB (Debug, Full Speed) 35 - External power supply (using surface mount clamp test points and power input vias) 36 37- Three Debug modes 38 39 - Debug on-board (SWD) 40 - Debug in (ETM, SWD, and JTAG) 41 - Debug out (SWD) 42 43- User LEDs and buttons 44 45 - Three User LEDs (red, blue, green) 46 - Power LED (white) indicating availability of regulated power 47 - Debug LED (yellow) indicating the debug connection 48 - Two User buttons 49 - One Reset button 50 51- Five most popular ecosystems expansions 52 53 - 2 Seeed Grove® system (I2C/Analog) connectors 54 - SparkFun® Qwiic® connector 55 - 2 Digilent PmodTM (SPI and UART) connectors 56 - ArduinoTM (Uno R3) connector 57 - MikroElektronikaTM mikroBUS connector 58 59- MCU boot configuration jumper 60 61**Special Feature Access** 62- 32 MB (256 Mb) External Quad-SPI Flash 63 64.. figure:: ek_ra4m2.webp 65 :align: center 66 :alt: RA4M2 Evaluation Kit 67 68 EK-RA4M2 Board Functional Area Definitions (Credit: Renesas Electronics Corporation) 69 70Hardware 71******** 72Detail Hardware feature for the RA4M2 MCU group can be found at `RA4M2 Group User's Manual Hardware`_ 73 74.. figure:: ra4m2_block_diagram.webp 75 :width: 442px 76 :align: center 77 :alt: RA4M2 MCU group feature 78 79 RA4M2 Block diagram (Credit: Renesas Electronics Corporation) 80 81Detail Hardware feature for the EK-RA4M2 MCU can be found at `EK-RA4M2 - User's Manual`_ 82 83Supported Features 84================== 85 86The below features are currently supported on Zephyr OS for EK-RA4M2 board: 87 88+-----------+------------+----------------------+ 89| Interface | Controller | Driver/Component | 90+===========+============+======================+ 91| GPIO | on-chip | gpio | 92+-----------+------------+----------------------+ 93| MPU | on-chip | arch/arm | 94+-----------+------------+----------------------+ 95| NVIC | on-chip | arch/arm | 96+-----------+------------+----------------------+ 97| UART | on-chip | serial | 98+-----------+------------+----------------------+ 99| CLOCK | on-chip | clock control | 100+-----------+------------+----------------------+ 101| SPI | on-chip | spi | 102+-----------+------------+----------------------+ 103| COUNTER | on-chip | counter | 104+-----------+------------+----------------------+ 105| ADC | on-chip | adc | 106+-----------+------------+----------------------+ 107| PWM | on-chip | pwm | 108+-----------+------------+----------------------+ 109| I2C | on-chip | i2c | 110+-----------+------------+----------------------+ 111 112Other hardware features are currently not supported by the port. 113 114Programming and Debugging 115************************* 116 117Applications for the ``ek_ra4m2`` board target configuration can be 118built, flashed, and debugged in the usual way. See 119:ref:`build_an_application` and :ref:`application_run` for more details on 120building and running. 121 122Flashing 123======== 124 125Program can be flashed to EK-RA4M2 via the on-board SEGGER J-Link debugger. 126SEGGER J-link's drivers are avaialbe at https://www.segger.com/downloads/jlink/ 127 128To flash the program to board 129 130 1. Connect to J-Link OB via USB port to host PC 131 132 2. Make sure J-Link OB jumper is in default configuration as describe in `EK-RA4M2 - User's Manual`_ 133 134 3. Execute west command 135 136 .. code-block:: console 137 138 west flash -r jlink 139 140Debugging 141========= 142 143You can use Segger Ozone (`Segger Ozone Download`_) for a visual debug interface 144 145Once downloaded and installed, open Segger Ozone and configure the debug project 146like so: 147 148* Target Device: R7FA4M2AD 149* Target Interface: SWD 150* Target Interface Speed: 4 MHz 151* Host Interface: USB 152* Program File: <path/to/your/build/zephyr.elf> 153 154**Note:** It's verified that we can debug OK on Segger Ozone v3.30d so please use this or later 155version of Segger Ozone 156 157References 158********** 159- `EK-RA4M2 Website`_ 160- `RA4M2 MCU group Website`_ 161 162.. _EK-RA4M2 Website: 163 https://www.renesas.com/us/en/products/microcontrollers-microprocessors/ra-cortex-m-mcus/ek-ra4m2-evaluation-kit-ra4m2-mcu-group 164 165.. _RA4M2 MCU group Website: 166 https://www.renesas.com/us/en/products/microcontrollers-microprocessors/ra-cortex-m-mcus/ra4m2-100mhz-arm-cortex-m33-trustzone-high-integration-lowest-active-power-consumption 167 168.. _EK-RA4M2 - User's Manual: 169 https://www.renesas.com/us/en/document/mat/ek-ra4m2-v1-users-manual 170 171.. _RA4M2 Group User's Manual Hardware: 172 https://www.renesas.com/us/en/document/man/ra4m2-group-users-manual-hardware 173 174.. _Segger Ozone Download: 175 https://www.segger.com/downloads/jlink#Ozone 176
